Hairbrush



FIG. 1 is a Perspective view of a hairbrush showing my new design;

FIG. 2 is a Front elevational view thereof;

FIG. 3 is a Rear elevational view thereof;

FIG. 4 is a Right side elevational view thereof;

FIG. 5 is a Left side elevational view thereof;

FIG. 6 is an enlarged Top plan view thereof; and,

FIG. 7 is an enlarged Bottom plan view thereof.

CLAIM The ornamental design for a hairbrush, as shown and described.